1) The document contains a student's experiment details including their name, roll number, batch, experiment number, title, algorithm, flow chart, Python code, and output. 2) The experiment compares two strings and converts one string to the opposite case by looping through each character, determining its ASCII value, and adding or subtracting 32 to convert the case before appending it to a new string. 3) The code takes a user input string, loops through each character, converts the character to opposite case based on its ASCII value, adds it to a new string, and prints the output string.